When a thousand people use the same generator and 2 or 3 people make a CS that goes yellow over a period of time and not entirely consistantly at that...I think there may be some other factor at work. Perhaps hydrogen sulphides in the water and/or air? Acid rain? Something that is acting as a catylist? ..something that's not common? Limiting some factor further, like modifying the generator to make a weaker product a little slower, may solve the immediate problem but not reveal the cause.
BTW Mike, You are the only one to attribute color to oxides. I tend to agree that there is some factor involving oxides, or a semi oxide of silver that contributes to the formation of larger particles which display the color due to their size. ...something akin to an oxygen atom presenting an attractive surface for silver ions to crystalize around which unstable H2O2 can scavenge in it's desire to attract another oxygen atom to make an O2 molecule and water, thus break the crystal apart. That's not to say that the oxide itself is presenting the color. It could be that the structure of the crystal presents the color and it takes a certain minimal number of silver atoms to make that configuration. PS I took High School chemistry [a LONG time ago]...and that's about it. I also took trade school metallurgy..for what that's worth. [not much more than a clue] ..and spent a few young [late teen] years as an electroplater, both chemical and electrical deposition. [copper, gold and zinc mostly] I'm not about to second guess an engineer or chemist, but sometimes the highly educated will miss the obvious that I cannot quantify. I know some of both and have been known, in my practical ignorance of detail..and convention, to present other pathways of investigation when they got stumped. Ode At 03:19 AM 9/30/2003 -0400, you wrote: >url: http://escribe.com/health/thesilverlist/m62854.html >Re: CS>Yellow tinted CS!! >From: Jonathan B. Britten >Date: Mon, 29 Sep 2003 22:36:43 > > > I have observed the lunar influence on CS color on several > > occasions. I hypothesize that the increased particle size > > producing the higher TE and the yellowish color is a gravitational > > influence, but that is merely conjectural. All the same, my hunch > > is that some research would probably reveal a number of > > manufacturing processes that take moon phase into account. > > > If anyone can educate me on this topic, I am willing to learn. > > > JBB > > If you take two process that have a high probability of occurrence, > you will inevitably find a correlation between them, even though > they have no connection. > > I use a high-compliance current source (ascii circuit recently > posted), and Faraday's equations to time my cs. > > I find the yellow tint starts occurring over a very small range of > ppm. In other words, the process saturates quickly, and is extremely > sensitive to the ion concentration at the end of the brew time. Just > one or two ppm difference is all it takes to make a brew that is > clear, or one that shows color. > > Most people run with constant voltage and have no current limiting. > > This means the brew can easily reach the current level needed to > produce silver oxide, which produces the tint. The process is out of > control, but the moon has no influence on the outcome. > > People who do use current limiting generally run at high current > density. This means the regulator is saturated for a large portion > of the brew time. > > The production of oxide then depends on the diffusion of silver and > hydroxyl ions through the solution, which depends on the AC line > voltage at the time, the temperature of the dw, any convection > currents, and probably a dozen other variables. Again, the process > is out of control, and the moon has no influence on these factors. > > The moon is too far away to influence any of the parameters that > affect the cs process. When you get unrepeatable results, you need > to control these parameters better. > >Best Regards, > >Mike Monett > > >-- >The silver-list is a moderated forum for discussion of colloidal silver. > >Instructions for unsubscribing may be found at: http://silverlist.org > >To post, address your message to: [email protected] > >Silver-list archive: http://escribe.com/health/thesilverlist/index.html > >List maintainer: Mike Devour <[email protected]> > >
